3D Systems, Inc.

Grady O Floyd

Mark Anthony Lewis

Harry L Tarnoff

Borzo Modrek

Thomas J Vorgitch

Wayne A Vinson

Richard A Harlow

Thomas P Chen

Frank F Little

Paul H Marygold

Robert T Pitlak

Yehoram Uziel

Wolfgang Schwarzinger

Raymond A Bradford

A stereolithography system employing a more powerful laser and faster dynamic mirrors to speed up part building without sacrificing accuracy is described, especially large or complex parts. A controllable shutter is placed in the beam path of the laser to selectably block the passage of the beam and prevent unwanted solidification. A suitable servo controlled feedback loop is provided to accurately position the mirrors at the higher velocity. Also described is a means to reduce data flow by distributing tasks in a multiple processor environment, and to improve user interaction by the use of a spreadsheet model. These also improve the speed of part building, especially for large or complex parts.

Rapid and accurate production of stereolighographic parts

Growing community of inventors

Newhall, CA, United States of America

Grady O Floyd